<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{% block title %}{% endblock %}</title>
</head>
<body>

<header>
    {% block header %}
    {% endblock %}
</header>

<div>
    {% block content %}{% endblock %}
</div>

<footer>{% block footer %}{% endblock %}</footer>

</body>
</html>